Twelve-year-old Shell Wakefield is having a great time with her cousins at her new home on Yonder Island. But when she discovers that the monstrous Green Knight from myth is hunting her, she realizes that far more exists to her life than she ever could have imagined - including superheroes, a universe-shattering destiny, and a friendship with a mischievous and magical red fox.This lively, intelligent, and good-hearted tale is for ages 10 and up (but...